document.write( "Question 418153: solve by the substition method \r
\n" ); document.write( "\n" ); document.write( "7x+3y=-35
\n" ); document.write( "-7x+y=63 \r
\n" ); document.write( "\n" ); document.write( "the soltion is \r
\n" ); document.write( "\n" ); document.write( "or there is no solution
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Algebra.Com's Answer #292738 by edjones(8007)\"\" \"About 
You can put this solution on YOUR website!
7x+3y=-35
\n" ); document.write( "-7x+y=63
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\n" ); document.write( "4y=28
\n" ); document.write( ".
\n" ); document.write( "y=7
\n" ); document.write( "x=-8
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\n" ); document.write( "Ed
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